I haven't. What I did find of value in eastshore.xyz was a tutorial to troubleshoot the Giant miner. BTW, I never did get my miner from asicminermarket. After my payment, they went radio silent. Fortunately, I paid through PayPal and got a full reimburstment. Another user said he did order from asicminermarket and did get his Giant within ~ 1 week.
I've purchased from @JasonHan . I can vouch for him, as I bought a Giant from him and it's working perfectly. However, there is a big price difference with respect to Baikal. Apparently, Baikal is discontinuing them.
I agree. It's hard to find a legit seller these days. I'd definitely stay away from Alibaba and AliExpress, due to others' experiences.